Get rid of it

I revised all the places where the method was used in my clone of Rakudo. Mostly, they are replaced with a direct call of the Num method. In a few places it leads to double calls like $x.Num.Num, which were also reduced, of course.

With the updated code, all the tests from Roast were passed. As a side effect, the speed in some cases is increased by around 3%:

Update. They core developers (although at first not clearly understanding why it the method was needed at all) decided to keep the method and updated the documentation, which is also a positive output 🙂